Propeller fan



FIG. 1 is a front, bottom and right side perspective view of a propeller fan, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is enlarged sectional view taken along line A-A of FIG. 3;

FIG. 9 is enlarged sectional view taken along line B-B of FIG. 3; and,

FIG. 10 is a rear, bottom, and left side perspective view thereof.

The broken lines of FIGS. 1-10 illustrate portions of the propeller fan that form no part of the claimed design. 

CLAIM The ornamental design for a propeller fan, as shown and described. 